Compiled and reviewed by the US Trip Planner planning team at COD Solutions Oy · Last reviewed Sep 6, 2026 · Editorial standards
Drive Time
52m
Distance
37.5 mi
60 km
Drive Score
6/10
Good drive
Same Day?
Yes, doable
Fuel Cost
$8
one way
EV Charging
Sparse
1 stations
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Tanner, WA
nicholas hatherly
Federal Way, WA
Wikimedia Commons
The drive from Tanner, WA to Federal Way, WA covers 37.5 miles and takes about 52m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on State Route 18, I 90, South Peasley Canyon Road for much of the mileage, and the overall profile is mostly highway. The longest uninterrupted segment is about 24.2 miles on State Route 18. At current regular gas prices, budget about $7.90 one way before food or hotel costs.
| Road | Distance | Duration |
|---|---|---|
| State Route 18 | 24.2 mi | 31m |
| I 90 | 6.5 mi | 7m |
| South Peasley Canyon Road | 1.8 mi | 3m |
| South 320th Street | 1.4 mi | 3m |
| Southeast North Bend Way | 0.6 mi | <1m |
| 436th Avenue Southeast | 0.5 mi | 1m |
| Pacific Highway South | 0.5 mi | <1m |
| Snoqualmie Parkway | 0.3 mi | <1m |
Hour-of-day weekday pattern from 12 FHWA count stations on your route.
Peak
2 PM
~1,488 veh/hr typical · worst 2,567
Quietest
2 AM
~114 veh/hr
Peak-to-quiet ratio
13.1×
busier at peak than in the quiet hours
Averaged across 102 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Step-by-step road directions between Tanner, WA and Federal Way, WA.
Start on Snoqualmie Valley Trail
Turn left onto Southeast North Bend Way
Enter roundabout onto 436th Avenue Southeast
Continue on 436th Avenue Southeast
Enter roundabout onto 436th Avenue Southeast
Continue on 436th Avenue Southeast
Take the ramp
Merge onto I 90
Take the exit
Keep slight left at fork
Merge onto WA 18
Continue on WA 18
Take the exit
Keep slight left at fork
Keep slight left at fork
At end of road, turn left onto West Valley Highway North
Turn right onto South Peasley Canyon Road
Enter roundabout onto South Peasley Canyon Road
Continue on South Peasley Canyon Road
Continue on South 320th Street
Turn right onto WA 99
Turn right onto South 312th Street
Turn right
Arrive at destination
Rest stops, refuel points, and overnight suggestions along this route.
Mid-route town
Meal stop
19 mi into the route
Best for: Lunch, fuel, and a longer reset
This sits close to the middle of the route, so it works well for the longest stop of the day.
A short stop after about 37.5 miles helps settle the day before fatigue starts building.
The midpoint is around 18.7 miles from Tanner, WA, which is a good place for a longer meal and fuel stop.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
5 decision points cluster between mile 8.1 and 33.5 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
Take the exit toward WA 18 West: Auburn
Exit ramp - move to the correct lane early. Lane positioning matters here
Keep slight left at fork toward SR 18 west, Snoqualmie Parkway: Auburn, Tacoma
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Take the exit toward WA 167: Renton, Puyallup
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Keep slight left at fork toward WA 167 South: Puyallup, West Valley Highway
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Keep slight left at fork toward West Valley Highway
Highway fork - watch signs carefully. Lane positioning matters here
Regular Gas
$7.90 one way
$15.79 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $5.56 | $8.20 | $16.41 |
| premium | $5.76 | $8.50 | $17.00 |
| diesel | $5.60 | $8.27 | $16.53 |
No toll roads detected on this route.
Drive Cost (one way)
Fuel
$8
Estimated CO2 emission: 13.1 kg one way. Prices: EIA weekly data, 2026-08-31.
Driving Electric?
About $4 in charging · 0 stops · 69% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 11.3 | 0 | $3.94 | $1.80 |
| Efficient EV | 9.4 | 0 | $3.28 | $1.50 |
| EV Truck/SUV | 15 | 0 | $5.25 | $2.40 |
Gas CO2
13 kg
EV CO2
4 kg (69% less)
This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Current conditions at both ends of the drive.
Origin
Night in Tanner on Saturday
Local time
10:59 PM
PDT
Current temp
51°F
Rain
Destination
Night in Federal Way on Saturday
Local time
10:59 PM
PDT
Current temp
54°F
Mostly Cloudy then Light Rain Likely
Time zone
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
37.5 mi in 52m, mostly highway — 24.2 mi of that is on State Route 18.
This is a straightforward highway drive that stays mostly on State Route 18 and I 90. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 8.1 miles in.
Focused - lots of decisions in a short distance, but it is over quickly
Balances navigation complexity with total wheel time.
This is a short but busy drive. With 18 decision points packed into just 37.5 miles, you will need to pay attention to lane changes and exits — but the whole thing is over in 52m.
Where does it get tricky?
The main spots that need attention: at 8.1 miles: Exit ramp - move to the correct lane early. Lane positioning matters here; at 8.4 miles: Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 33 miles: Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one.
Gently rolling terrain
Total Climb
1,412 ft
Total Descent
1,471 ft
Highest Point
1,288 ft
~14 mi in
Elevation Range
1,190 ft
Notable High Points
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Tanner, WA and Federal Way, WA, road signs point toward Snoqualmie Parkway: Auburn, Tacoma, Puyallup and Valley Highway.
Snoqualmie Parkway: Auburn
Tacoma
Puyallup
Valley Highway
Founded 1929
Federal Way is a city in King County on the Puget Sound of Washington State. It is the home of the Pacific Bonsai Museum and Rhododendron Species Botanical Gardens. With a population of 96,000 (2016), Federal Way is one of Seattle's largest suburbs.
Top landmarks
City content from Wikivoyage (CC BY-SA 4.0) and Wikidata (CC0).
Weekend Trip
Doable as a same-day drive at 52m. Total distance: 37.5 miles.
Family Friendly
Moderate complexity with 0 natural rest stops along the way.
Solo Traveler
52m drive, comfortable solo distance.
EV Driver
0 DC fast chargers along the route. Coverage: unknown.
First-Time Driver
Mostly highway driving (83%). Some complex stretches to watch for.
Compiled by the US Trip Planner planning team at COD Solutions Oy from open government datasets — OSRM over OpenStreetMap for geometry, EIA for fuel prices, USGS 3DEP for elevation, and FHWA TMAS for hourly traffic volumes. See our methodology for refresh cadence and limitations.
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